I'm wanting Solidworks to put some custom text on to a drawing (say in the bottom right hand corner) only when it is saved as a PDF. This way I can tell if a drawing has been printed off is from the Solidworks drawing file itself or from the PDF that has been created.

I don't have PDM so i carnt use that (if it can even do that?)

Any suggestions would be great! Let me know if you need anymore details.

Yes, it can be done. Assign the note to a Layer that's visible but set to not print. (See the BLACK layer settings below.) When saved as a pdf the note will be visible, but when printed directly from SolidWorks it won't be. But keep in mind that this will only work if the drawing is saved as a pdf. If it is printed to pdf the note will not be visible.

Is it also possible to show the note on a saved/printed pdf, but not on the drawing itself? Constantly having a note on the background can be quite distracting. I essentially want the note to remain hidden while working on the drawing, but becomes visible whenever I want to print it on paper/pdf.